This name is a synonym of Anemone hepatica var. japonica (Nakai) Ohwi.
The record derives from WCSP (in review)
(data supplied on 2012-03-23)
which reports it as a synonym with original publication details: Forest Pl. History Jap. Is. 1: 145 1974.
This name was in version 1 of The Plant List, record kew-2638277, and has not been changed.